Hoist for corn-shockers.



, PATENTED FEB. 7, 1905.

D. w. SMITH.

HOIST FOR 001m SHOCKERS.

APPLIOATIOK FILED MAE. 5, 1904.

2 BHEETSSHEET l.

PV/TJVESSES: J W? m No. 782,072. PATENTED FEB. 7, 1905.

D. W. SMITH.

HOIST FOR CORN SHOGKERS.

APPLIOATIOK FILED MAB. 5, 1904.

2 SEEETB-BHEET 2.

lV/TNESSES:

NVEN T Patented February 7, 1905.

DANIEL W. SMITH, OF CHICAGO, ILLINOIS,

ASSICNOR TO INTERNATIONAL HARVESTITER COMPANY, OF CHICAGO, ILLINOIS, A(.ORPORA'ITION OF NEIV JERSEY.

HOIST FOR CORN-SHOCKERS.

SPECIFICATION forming part of Letters Patent No. 782,072, dated February7, 1905. Application filed March 5, 1904. Serial No. 196,762.

To m7] [when]. it 'III/HJ/ con/corn.-

zen of the United States, and a resident ofChiago, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin Hoists for Corn-Shockers, of which the following is a specificationsutliciently clear and exact to enable those skilled in the art to whichit appertains to make and use the same.

The invention relates in general to hoists, and in particular to hoistsfor corn-harvesters of the type in which a shock of corn is formed upona platform and is lifted therefrom and swung upon one side and depositedupon the ground by means of a crane.

The obyect of the invention is to provide a hoist the operating-lever ofwhich serves to turn the crane, whereby the operation of li'fting theshock from the harvester and depositing it upon the ground isfacilitated. Heretofore the cranes for such harvesters have usually beenprovided with a winch having a crank by which it is operated and a leverindependentthereofforturningthecrane. Such a constructitm necessitates,first, the raising of a shock a sufiicientamount to clear the platformand the guard around the outside thereof by turning the crank of thewinch and locking the same to hold the shock in its elevated position;second, the turning of the crane by means of the lever to swing theshock to one side preparatory to depositing it upon the ground, and,third, the rel asing of the winch to lower the shock. rest during theoperation of depositing the shock, its e tliciency depends considerablyupon the time required to perform this operation. It is thereforeessential that this time be reduced to the minimum. The presentinvention, an embodiment of which is shown in the accompanying drawings,very materially lessens this time by performing the three opera tionsabove referred to by means of a single lever, thus increasing theefficiency of the machine.

Referring to the drawings forming a part of this specification. in whichlike characters of Since the machine is at V I reference designate likeparts, Figure 1 illus- Be it known that I, DANIEL IV. SMITH, a c1t1-trates as much of a corn-harvester of the above- 5 described type as isnecessary to show the application of the invention. Fig. 2 is anelevation of the inner side of the hoistand its operating-lever, showingthe latter in its highest po sition and showing also a fragment of themast 55 of the crane to which the hoist is attached. Fig. 3 isanelevation corresponding to Fig. 2, showing the operating-lever in itslowest position. Fig. A is'a plan view of the parts shown in Figs. 2 and3, showing the operat- 6O ing-lever in its medial position, in which theradial links are substantially horizontal. Fig. shows a modification inthe construction of the pawl and ratchet.

Referring to Fig. 1, A designates the trac- 5 tion-wheel; .B, theframework of the gathering devices; C, the shield around the outer edgeof the platform; I), the mastof the crane; I), the members of the tripodsupporting the same. and I) the shock-forming post 7 having foldingradial arms (7, by which the shock is lifted. All these parts are commonto corn-harvesters of this type and need not be further described here.

Mounted upon the mast D of the crane is 75 a hoist having a wimling-drumE and an operating-lever F. The winding-drum is connected with theshock-forming post by means of the usual rope (I', and theoperating-lever is connected with the winding-drum by means 30hereinafter described, by which it is turned. The winding-drum E isjournaled on a shaft (2, carried by the bracket E, secured to the mast.This drum is provided with ratchets c,

which are adapted to be engaged by pawls t 5 which are pivotallyconnected with radial links (5", by which they are held in properposition relative to the ratchet-s, one end of each of which links ispivoted on the shaft 0'. Reacting between the pawls and the radial linksare the 9 springs c, which serve to hold the pawls into ongagement withthe ratchets when the former are unrestrained. The lever F is preferablyprovided with a yoke f at the end adjacent to the mast, between themembers of which the 95 mast is received and by which it is pivot-allyconnected therewith in the usual manner, so that it serves to turn thecrane and yet is free to vibrate in a transverse plane. The links f areprovided to connect the radial links a with the lever F and arepreferably pivoted I on opposite sides of the inner member of the yokef. Their connection with the radial links is preferably made by means ofthe pivots for the pawls. Yokes f are provided at the upperend of theselinks to support the outer ends of the pivot-pins.

From the above description it will be seen that if the lever F bereciprocated in the plane of the mast the pawls will alternately engagethe ratchets, moving-the latter intermittently in one direction, onepawl engaging on the upward movement of the lever and the other pawl onthe downward movement thereof. By these means the shock may readily belifted and be swung to one side of the machine preparatory to depositingit upon the ground. A support f 3 is provided to carry theoperating-lever, which by its engagement therewith serves to hold thecrane in its normal position during the formation of the shock.

In order to release the winding-drum to lower the shock, it is necessaryto provide means for disengaging the pawls from the ratchets. The meansherein shown consist of latch-handles G, which are-pivoted in the usualmanner to the outer end of the lever F and connected to the pawlsthrough the agency of connecting-rods g, bell-cranks( and links g whichlatter are provided with a flexible portion 9, herein shown in the formof a chain. By these means it will be seen that the winding-drum may bereleased and the shock dropped to the ground, or it may be lowered tothe ground gradually by alternately releasing the pawls. In order toreadily disengage the pawls from the ratchets, it may be found desirableto provide the former with antifriction-rollers, as shown in Fig. 5, andto shape the ratchets in conformity therewith, in which instance it willbe necessary to reduce the number of ratchets.

L The operation of the invention is substanl tially as follows: A shockis accumulated upon the platform of the harvester in any desired mannerand bound. It is then lifted from the platform clear of the shieldaround the outer I edge thereof by the operater, who simply reciprocatesthe operating-lever in the plane of the mast, thereby turning thewinding-drum. The shock is then swung from the platform to one side ofthe machine by means of the same operating-lever, after which thewinding-drum is released by means of the latchhandles to drop the shock,or it may be lowered gradually to the ground by operating thelatch-handles alternately and reciprocating the operating-lever in areverse direction to that employed in raising the shock. Theshock-forming post is then disengaged from the shock in the usual mannerand returned to the platform by repetition of the operation abovedescribed.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

.In a corn-shocker, the combination with the crane, of a shock-formingpost, a windingdrum provided with ratchets mounted upon the crane andconnected with said post, a lever pivotally connected with the craneindependl l r l l l l i ent of the support for said drum which shalloperate to revolve the crane, means, comprising a plurality of togglesconnecting said drum and lever each having a pawl which is adapted toengage the ratchets. whereby said drum may be rotated by each stroke ofsaid lever l and latch-handles connected with the pawls for throwingeach out of engagement with the ratchets to permit retrograde rotationof said drum.

In testimony whereof I. have signed my name l to this specification inthe presence of two subl scribing witnesses. DANIEL W. SMITH.

l Witnesses: l ANSON H. BROWN, 1 CHAS. F. WAL'rERs.

